Notes: Dolphins' offensive line has not allowed a sack but will be tested against the Broncos, who are among the league leaders with 14 sacks. . . . Broncos offensive coordinator Mike Shanahan was the former offensive coordinator under Charley Pell at the University of Florida. . . . Dan Marino says he will have no further discussions this season with owner Joe Robbie about a renegotiated contract. He said renegotiating during the season would affect his concentration.